105 lines
3.5 KiB
Plaintext
105 lines
3.5 KiB
Plaintext
FROM alpine:3.4
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# ensure local python is preferred over distribution python
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ENV PATH /usr/local/bin:$PATH
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# http://bugs.python.org/issue19846
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# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
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ENV LANG C.UTF-8
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# install ca-certificates so that HTTPS works consistently
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# the other runtime dependencies for Python are installed later
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RUN apk add --no-cache ca-certificates
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ENV GPG_KEY %%PLACEHOLDER%%
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ENV PYTHON_VERSION %%PLACEHOLDER%%
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# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
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ENV PYTHON_PIP_VERSION %%PLACEHOLDER%%
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RUN set -ex \
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&& apk add --no-cache --virtual .fetch-deps \
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gnupg \
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openssl \
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tar \
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xz \
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\
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&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
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&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
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&& export GNUPGHOME="$(mktemp -d)" \
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&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
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&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
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&& rm -r "$GNUPGHOME" python.tar.xz.asc \
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&& mkdir -p /usr/src/python \
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&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
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&& rm python.tar.xz \
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\
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&& apk add --no-cache --virtual .build-deps \
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bzip2-dev \
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gcc \
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gdbm-dev \
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libc-dev \
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linux-headers \
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make \
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ncurses-dev \
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openssl \
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openssl-dev \
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pax-utils \
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readline-dev \
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sqlite-dev \
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tcl-dev \
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tk \
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tk-dev \
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xz-dev \
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zlib-dev \
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# add build deps before removing fetch deps in case there's overlap
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&& apk del .fetch-deps \
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\
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&& cd /usr/src/python \
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&& ./configure \
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--enable-loadable-sqlite-extensions \
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--enable-shared \
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&& make -j$(getconf _NPROCESSORS_ONLN) \
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&& make install \
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\
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# explicit path to "pip3" to ensure distribution-provided "pip3" cannot interfere
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&& if [ ! -e /usr/local/bin/pip3 ]; then : \
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&& wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
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&& python3 /tmp/get-pip.py "pip==$PYTHON_PIP_VERSION" \
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&& rm /tmp/get-pip.py \
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; fi \
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# we use "--force-reinstall" for the case where the version of pip we're trying to install is the same as the version bundled with Python
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# ("Requirement already up-to-date: pip==8.1.2 in /usr/local/lib/python3.6/site-packages")
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# https://github.com/docker-library/python/pull/143#issuecomment-241032683
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&& pip3 install --no-cache-dir --upgrade --force-reinstall "pip==$PYTHON_PIP_VERSION" \
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# then we use "pip list" to ensure we don't have more than one pip version installed
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# https://github.com/docker-library/python/pull/100
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&& [ "$(pip list |tac|tac| awk -F '[ ()]+' '$1 == "pip" { print $2; exit }')" = "$PYTHON_PIP_VERSION" ] \
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\
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&& find /usr/local -depth \
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\( \
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\( -type d -a -name test -o -name tests \) \
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-o \
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\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
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\) -exec rm -rf '{}' + \
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&& runDeps="$( \
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scanelf --needed --nobanner --recursive /usr/local \
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| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
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| sort -u \
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| xargs -r apk info --installed \
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| sort -u \
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)" \
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&& apk add --virtual .python-rundeps $runDeps \
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&& apk del .build-deps \
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&& rm -rf /usr/src/python ~/.cache
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# make some useful symlinks that are expected to exist
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RUN cd /usr/local/bin \
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&& { [ -e easy_install ] || ln -s easy_install-* easy_install; } \
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&& ln -s idle3 idle \
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&& ln -s pydoc3 pydoc \
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&& ln -s python3 python \
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&& ln -s python3-config python-config
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CMD ["python3"]
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